266 ON DASYCEPS BUCKLANDI 
termed) a sinuous elevation 4 4 which is probably the cast of a 
groove on the outer surface of the face, answering to the anterior of 
the so-called * mucous-canals” of the ordinary Labyrinthodonts. 
Some of the cranial sutures can be traced with tolerable certainty ; 
those in the neighbourhood of the orbits, for instance, between the 
post-frontal (Pz), pre-frontal (Pf), post-orbitar (P.O.), and jugal (/.) 
bones, are very well marked. The lachrymal (Z.) appears to enter 
into the anterior boundary of the orbit, and the maxillary (JZ) 
extends back to at least the point (@), if not further. The frontals (#7) 
seem to have been very large bones, extending from just in front of 
the parietal foramen to the posterior margins of the facial fontanelle, 
into which they enter. The bone which unites with them at this 
point I regard as the nasal (V.). Its junction with the premaxillary 
(Pimx.) cannot be observed, but I have little doubt that the boundaries 
of the fontanelle are furnished by three bones on each side, the 
frontals, nasals, and premaxillaries. The characters of the supra 
occipital cannot be made out, nor are any sutures distinctly visible in 
the region between the letters 7,4, Sg. The latter bone and that 
marked Q./. are, it is to be understood, only provisionally denominated 
squamosal and quadratojugale, as I entertain some doubts respecting 
their homologies. 
Dr. Lloyd (supra) speaks of twenty teeth. The specimen is so 
excessively fragile that some of those which he observed may readily 
have perished. At any rate I can only find eleven, which occupy a 
space of 2 inches (v7, v,) on the left side of the maxilla, and of these 
only the two anterior ones are in a perfect condition. These teeth 
are pointed, much curved, and about a quarter of an inch long, their 
bases having a diameter of three-fortieths of an inch. They are 
directed outwards, their curved sides being downwards and inwards 
(in the natural position). They are anchylosed to the margins of the 
jaw, which exhibits no alveolar groove. Their bases are longitudinally 
striated, and they present apparently a wide pulp cavity, but I can 
say nothing respecting their minute structure, as I did not feel justified 
in detaching any of the few which remain. Obscure traces of teeth 
are seen in the rest of the alveolar margins. 
The inferior half of the cranium (Fig. 2) presents a small adherent 
patch of the frontals (#7.), and what appear to be the under portions 
of the bases of the two processes, #,%.1 The matrix at 7 and 2, 2, 
1 T suppose that these are the parts regarded by Dr. Lloyd as the occipital condyles ; 
their nature, however, appears to me to be what I have stated above. I could discover no 
condyles where I should have expected to find them; but it is possible that they might yet 
be brought to light by very careful excavation. 
